draft hazardous waste post-closure …static.azdeq.gov/pn/fs_camp_navajo.pdf · draft hazardous...

1 Publication Number: FS-16-21

DRAFT HAZARDOUS WASTE POST-CLOSURE PERMIT

CAMP NAVAJO

HUGHES AVENUE, BUILDING 15

BELLEMONT, ARIZONA 86015

EPA I.D. NO. AZ7 213 820 635

LTF ID # 62926

This fact sheet was prepared in accordance with the Arizona Administrative Code (A.A.C.) R18-8-271.E(e) and

R18-8-271.G. A fact sheet must accompany every Arizona Hazardous Waste Management Act (AHWMA) draft

permit that the Arizona Department of Environmental Quality (ADEQ) has prepared that either raises major issues

or involves a new facility. All references to the A.A.C. hereafter refer to the A.A.C. R18-8-260 et. seq., made

effective on September 5, 2015, as published at 21 Arizona Administrative Register (A.A.R.) 1246, which

incorporates and/or modifies parts of Title 40 Code of Federal Regulations (CFR) Parts 260 et. seq.

The Arizona Department of Environmental Quality (ADEQ) has prepared a draft hazardous

waste post-closure permit for Camp Navajo. The draft permit allows Camp Navajo to maintain

the Post-Closure Permit Area on the southern portion of the installation for 10 years.

FACILITY DESCRIPTION

Camp Navajo is located approximately 10 miles west of Flagstaff. A site location map is shown

in Figure 1. The installation is owned by the United States Department of the Army and operated

by the Arizona Army National Guard. Camp Navajo overlaps Townships 20, 21, and 22 North

and Ranges 4, 5, and 6 East of the Gila and Salt River Baseline and Meridian. The community of

Bellemont lies near the northern boundary and has a population of approximately 600.

Camp Navajo is approximately 28,000 acres in size and is primarily made up of forests and

meadows. There are commercial, industrial and private properties along the northern boundary.

The remaining boundaries are owned by the State of Arizona or the United States Forest

Services, with some private parcels. The installation is divided into different operational areas,

including administrative and warehouse areas to the north, a Limited Area used for ammunition

storage in a large central portion of the installation, the Post-Closure Permit Area in the south

and military training areas (i.e., Buffer Areas) in the eastern, southern and western parts of the

installation. There is also a Veteran’s Cemetery in the northern portion of the installation. A map

of the installation is shown in Figure 2.

The Post-Closure Permit Area is 701 acres and consists of former open burn and open detonation

(OB/OD) sites. A map of the Post-Closure Permit Area is shown in Figure 3. Groundwater flow

direction is to the north. The depth to the regional aquifer is approximately 1,600 feet below

ground surface (bgs).

The facility is not located in a 100-year floodplain, but is located in the vicinity of several areas

that may be impacted by 100-year storms.

Fact Sheet November 2016

Draft Hazardous Waste Post-Closure Permit

Camp Navajo


Camp Navajo also requested a waiver for gates and fencing around the perimeter of the Post-

Closure Permit Area. The Camp Navajo installation is surrounded by a 4-foot, 3-strand, barbed

wire fence with 30 elk jumps. The fencing, gates and signage around the perimeter only allows

authorized individuals to enter the installation boundary. Training is also required for anyone

who is authorized to be within the munitions training areas, including recreational users, or the

Post-Closure Permit Area. Off-set concrete barriers at the access roads into the Post-Closure

Permit Area and signage around the perimeter prevent unknowing persons from entering the

facility. Recreational activities are allowed at times in the Buffer Areas surrounding the Post-

Closure Permit Area. Consequences are in place for unauthorized entry into the Post-Closure

Permit Area, including loss of hunting permits.

FACILITY DESCRIPTION

Camp Navajo was established in 1942 with a mission to operate as a supply depot for receipt,

shipping, storage, surveillance, minor maintenance and demilitarization of munitions and

assigned commodities. The OB/OD area was used for demilitarizing (i.e., treating) unserviceable

and obsolete conventional and chemical munitions. Although Camp Navajo had submitted a

hazardous waste permit application in 1988, the application was not accepted and it continued to

operate as a hazardous waste interim status facility. As a result of the Base Realignment and

Closure Act of 1988 (BRAC), operational control of the entire installation was transferred to the

Arizona Army National Guard (AZ ARNG) in 1993, with a primary mission for military

training. OB/OD operations ceased in 1994. In 2004, ARNG and ADEQ developed a strategy to

close the former OB/OD Area under the Comprehensive Environmental Response,

Compensation, and Liability Act of 1980 (CERCLA) for chemical contamination. This site was

investigated, remediated and closed by ADEQ under the CERCLA process on May 9, 2016

based on the Final After Action Report, Munitions Response Work Area (MRWA) 02 and Navajo

Army Depot (NAAD) 02, Camp Navajo, Bellemont, Arizona dated March 2016. However,

munitions and explosives of concern (MEC) and hazardous waste and hazardous constituents

remain on-site. Therefore, post-closure care is required under a hazardous waste permit. An area

surrounding the Post-Closure Permit Area received kick-out during detonations. Although a

surface clearance was conducted and few munitions are estimated in the subsurface, any

munitions discovered will be managed under the permit. On August 31, 2015, Camp Navajo

submitted a post-closure permit application.

The former interim status OB/OD sites that are located within the Post-Closure Permit Area are:

NAAD 02, Open Detonation Area

NAAD 05, Former Open Burn Area

NAAD 06, OB/OD Waste Pile and Burn Area

NAAD 08B, Former Open Burn Area (Trenches)

NAAD 09C, Closed Open Burn Area (Debris Pile)

NAAD 09D, Current Open Burn Area

NAAD 13, Deactivation Furnace, which is located outside of the OB/OD Area, was remediated

and closed under interim status in 2009.



Camp Navajo


TYPES AND QUANTITIES OF HAZARDOUS WASTES MANAGED

Types of Hazardous Wastes

Camp Navajo treated awide range of munitions including bombs, fuzes and projectiles.

Submunitions were also discovered and managed. Munitionswastes are considered hazardous

due to their characteristics of reactivity (D003) and ignitability (D001) pursuant to 40 Code of

Federal Regulations (CFR) §261 Subparts C and D. Constituents of concern (COCs) and

constituents of potential concern (COPCs) include perchlorate, explosives (e.g., hexahydro-

1,3,5-trinitro-1,3,5-triazine (RDX)), nitrate, semi-volatile organics and metals. Although some

treatment of chemical weapons was documented at the site, monitoring and soil sampling was

conducted. More specific information on hazardous waste types can be found in Permit

Attachment D (Post-Closure Plan) and 40 CFR §261Subpart C “Characteristics of Hazardous

Wastes” and Subpart D “List of Hazardous Wastes.”

Quantities of Hazardous Wastes Present

It is estimated that approximately 1,000 to 3,000 MEC remain in the Post-Closure Permit Area.

SUMMARY OF BASIS FOR DRAFT PERMIT CONDITIONS

The Draft Permit authorizes Camp Navajo to maintain the post closure permit area for a term of

10 years. At the end of the term, Camp Navajo must either apply for a permit renewal, or it must

remove the hazardous waste from the facility.

The draft permit consists of five parts and 13 attachments. All conditions are based on the Permit

Application submitted on August 31, 2015, with supplements and updates provided by the

applicant through November 1, 2016. The Permit establishes a post-closure care period of at least

30 years from the date of issuance.

Permit Part I contains general permit conditions. These conditions are required by Arizona

Administrative Code (A.A.C.) R18-8-270.A, and K and L (40 CFR §270.30) and A.A.C. R18-8-

270.A, M, N and O (40 CFR §270.32), hereafter referred to as Omnibus. In addition, ADEQ has

included the following permit conditions to this Part:

- I.E.9(d) contains a requirement to notify ADEQ of a new Quality Assurance Project Plan

(QAPP). This condition is authorized by A.A.C. R18-8-270.A (40 CFR §270.30(e) and

§270.31) and Omnibus.

Permit Part II contains general facility conditions. These conditions are required by A.A.C. R18-

8-264.A (40 CFR §264), R18-8-270.A (40 CFR §270), Omnibus, and R18-8-270.A (40 CFR

§270.33 (hereafter referred to as Schedule of Compliance, or SOC)).

- II.J.1(a) contains the requirements for evaluating a newly refurbished regional aquifer

monitoring well that lies closer to the Post-Closure Permit Area than the other aquifer wells

in the monitoring network. Within 30 days of permit issuance, Camp Navajo will submit for

ADEQ approval a proposal designed to evaluate concentrations at different depths within the

well and determine an optimum depth for future monitoring. This condition is authorized by



Camp Navajo


A.A.C. R18-8-264.A (40 CFR §264 Subpart F, §264 Subpart N and §264.310), Omnibus,

and SOC.

- II.J.1(b) contains the requirement for a regional aquifer monitoring well evaluation for the

newly installed well. Within 90 days of completion of the proposal activities, Camp Navajo

will submit for ADEQ approval a technical memorandum with a recommendation for

optimum depth for monitoring the newly refurbished well. This condition is authorized by

R18-8-264.A (40 CFR §264 Subpart F and §264 Subpart N), Omnibus, and SOC.

- II.J.2(a) contains the requirement for a surface water survey to evaluate run-on and run-off in

the Post-Closure Permit Area and vicinity. Within 10 days of permit issuance, Camp Navajo

will submit for ADEQ approval an evaluation with options for controlling water

accumulation in the OB/OD pots and for run-on and run-off controls, if applicable. This

condition is authorized by A.A.C. R18-8-264.A and P (40 CFR §264 Subpart N, §264.301

and §264.310), Omnibus, and SOC.

- II.J.2(c) contains the requirement for a surface water survey to evaluate run-on and run-off in

the Post-Closure Permit Area and vicinity. Within 60 days of ADEQ concurrence of the

evaluation, if controls or activities are necessary, Camp Navajo will submit for ADEQ

approval a work plan for implementation or construction of the control(s). This condition is

authorized by A.A.C. R18-8-264.A and P (40 CFR §264 Subpart N, §264.301 and §264.310),

Omnibus, and SOC.

- II.J.3 contains the requirement for a Post-Closure Permit Area-specific Contingency Plan to

replace the installation-wide contingency plan currently included in the permit. Within 10

days of completion of the proposal activities, Camp Navajo will submit for ADEQ approval a

revised contingency plan. This condition is authorized by A.A.C. R18-8-264.A and G (40

CFR §264 Subpart D and §264 Subpart N) and SOC.

- II.J.4 contains the requirements for procedures for statistical analysis for a groundwater

compliance monitoring program. The permit currently references United States

Environmental Protection Agency’s (U.S. EPA’s),The Statistical Analysis of Groundwater

Monitoring Data at RCRA Facilities Unified Guidance, March 2009; however, the

Groundwater Monitoring Program must provide details on how these requirements will

specifically apply to the Post-Closure Permit Area activities. Within 10 days of permit

issuance, Camp Navajo will submit for ADEQ approval the procedures for statistical analysis

to insert into Permit Attachment I.5. This condition is authorized by A.A.C. R18-8-264.A

(40 CFR §264 Subpart F, §264 Subpart G, §264.301 and §264.310), A.A.C. R18-8-270.A (40

CFR §270.21 and §270.31), Omnibus, and SOC.

- II.J.5 contains the requirement for a Post-Closure Permit Area-specific QAPP to replace the

Long-Term Management Work Plan QAPP referenced by the permit. Within 10 days of

completion of the proposal activities, Camp Navajo will submit for ADEQ approval a revise

QAPP. The revised QAPP will be external to the Permit, with notification of future revisions.

This condition is authorized by A.A.C. R18-8-270.A (40 CFR §270.30(e) and §270.31) and

SOC.

- II.J.6 contains the requirement for a plan for sampling representative springs in Sycamore

Canyon so as to detect any release to the environment from the post-closure area. Within 180



Camp Navajo


days of permit issuance, Camp Navajo will submit for ADEQ approval a sampling plan for

representative springs in the area of Sycamore Canyon that are connected to the C- and/or

Redwall-Muav (R)-aquifers. This condition is authorized by A.A.C. R18-8-264.A and P (40

CFR §264 Subpart G, §264.301 and §264.310), A.A.C. R18-8-270.A (40 CFR §270.21,

§270.30 and §270.31), Omnibus, and SOC.

- II.J.7 contains the requirement for ADEQ review and concurrence with the installation Land-

use Control Implementation Plan (LUCIP), as it will contain provisions for ensuring

protection of human health and the environment for the Post-Closure Permit Area. Within

180 days of permit issuance, Camp Navajo will submit for ADEQ review, comment and

concurrence the LUCIP. This condition is authorized by A.A.C. R18-8-264.A and G (40 CFR

§264 Subpart A, C, D, G and N), A.A.C. R18-8-266.A (40 CFR §266.204 and §266.206),

A.A.C. R18-8-270.A (40 CFR §270.21 and §270.30), Omnibus, SOC.

Permit Part III contains specific conditions related to the Post-Closure Permit Area. These

conditions are required by A.A.C. R18-8-264.A (40 CFR §264 Subpart G and 40 CFR §264

Subpart N), R18-8-270.A (40 CFR §270) and Omnibus. ADEQ has included the following

permit conditions to this Part:

- III.B and F – The permit condition allows alternate security provisions to meet the

requirements of A.A.C. R18-8-264.A (40 CFR §264.14(b)(1) and §264.117(b)) requiring

fencing and gates around the facility. The alternate conditions include:

(i) Installation fencing, gates and signs to prevent the unauthorized from entering the Post-

Closure Permit Area.

(ii) Off-set concrete barriers to allow those authorized to enter the area, yet prevent the

unknowing from entering the Post-Closure Permit Area.

(iii) Consequences for unauthorized or unknowing entry into the Post-Closure Permit Area.

(iv) MEC Awareness Training that includes information to prevent unknowing and

minimize unauthorized entry into the Post-Closure Permit Area.

- III.G - The inspection requirements include inspecting the condition of vadose zone wells,

evidence of trespassing, sediment sampling if migration of munitions or sedimentation

indicates a possible release of contaminants outside the Post-Closure Permit Area, sampling

of water from seeps or surface water encountered in Volunteer wash and findings

documented in annual reports. This condition is also authorized by A.A.C. R18-8-264.A (40

CFR §264.15 and §264.117(a)(1)(ii)) and A.A.C. R18-8-270 (40 CFR §270.21 and §270.30).

- III.G– The permit condition requires Camp Navajo to include results of the inspections in an

annual report with post-closure care and monitoring information and results. This condition

is also authorized by A.A.C. R18-8-264.A (40 CFR §264.15 and §264.117(a)(1)(ii)) and

A.A.C. R18-8-270.A (40 CFR §270.31(c)).



Camp Navajo


- III.H–The corrective action requirements include evaluating ordnance discovered in the

SWMU MRWA 02-02 (former kick-out area), conducting a waste analysis after a blow-in-

place emergency response action detonation event and managing any resulting waste.

Training and recreational uses may occur within this area. An after action report will be

included in the Post-Closure Care and Groundwater Report for each event. This condition is

also authorized by A.A.C. R18-8-264.A and G (40 CFR §264 Subpart A, C, D and G) and

A.A.C. R18-8-266.A (40 CFR §266 Subpart M) and A.A.C. R18-8-270 (40 CFR §270.21

and §270.30).

Permit Part IV contains specific conditions related to groundwater monitoring and other water

associated with the Post-Closure Permit Area. These conditions are required by A.A.C. R18-8-

264.A (40 CFR §264 Subpart F, §264 Subpart G and §264 Subpart N), A.A.C. R18-8-270.A (40

CFR §270.21, §270.30 and §270.31) and Omnibus.

Due to the complexity of the hydrogeological conditions, which includes shallow soils with

fractures and faults in the bedrock, an alternate means of compliance with the groundwater

monitoring requirements has been proposed.

o Twenty (20) vadose zone monitoring wells (VZMWs) were installed in the Post-Closure

Permit Area in 2008 at a depth of 10 to 26 feet bgs. Fifteen (15) temporary piezometers

(VPZs) were added to the network in 2013 to evaluate whether additional vadose zone wells

should be added in these locations based on whether the water is found to be persistent. The

VZMWs and VPZs were installed to collect samples of water percolating downward through

the soil from the surface to evaluate potential releases to the subsurface from waste left in

place. Data has been collected from 2009 through 2010 and 2014 through 2015 during the

spring and summer to collect enough water from melting snow and monsoon precipitation,

respectively for analysis. Concentrations of perchlorate (204 micrograms per liter (µg/L)

maximum) and RDX (47 µg/L maximum) in these shallow wells exceeded screening levels

of 11 µg/L and 0.61 µg/L, respectively. These vadose zone wells will continue as part of the

alternate groundwater monitoring program to monitor changes in concentrations.

o Groundwater samples from regional aquifer wells in the Camp Navajo installation, in

Bellemont and in surrounding areas have been previously monitored for munitions-related

constituents (e.g., explosives and perchlorate) and others related to hazardous waste. Camp

Navajo conducted groundwater characterization from 2004 through 2006. Munitions

constituents were not detected in groundwater samples. Monitoring of the Bellemont and

Camp Navajo wells started up again in spring 2016. Perchlorate was detected at 0.29 µg/L,

below the State of Arizona screening level of 11 µg/L. A newer U.S. EPA method is being

used with lower detection limits for perchlorate. An investigation is underway to determine

whether the detected concentration is a background water concentration for the area or if it

could be indicating a release from the Post-Closure Permit Area. Up to eight (8) regional

aquifer wells, depending on owner-allowed access and operational status, within and in the

vicinity of the installation will be monitored at a quarterly frequency for a minimum of two

years, with a reduced frequency after that only with ADEQ approval. The well network

includes two Camp Navajo wells (CN-1 and CN-2), the Veterans’ cemetery well (VC-1), one

Garland Prairie well (WP-1) and four (4) Flagstaff Meadows Water System wells (i.e.,



Camp Navajo


Bellemont wells)(DW-1, DW-2, DW-3 and DW-4). At this time, access has not been granted

for WP-1 and DW-1 and DW-2 have not been operational as of the spring 2016 sampling

event. The analytes to be analyzed are perchlorate, explosives, nitrate/nitrite, metals and

white phosphorus on a quarterly basis. The full list of 40 CFR 264 Appendix IX constituents

will be analyzed annually in accordance with the rules. This list includes volatile organic

compounds (VOCs), semi-volatile organic compounds (SVOCs), organochlorine pesticides

(OCPs), herbicides, polychlorinated biphenyls (PCBs), cyanide, sulfide and dioxins and

furans. Depending on concentrations encountered, different response measures or corrective

actions will be taken as described in permit Attachment I, Groundwater Monitoring program.

The Permit includes the following additional permit conditions in this Part:

- IV.B – The permit condition requires Camp Navajo to maintain a groundwater monitoring

network that includes vadose zone monitoring wells, piezometers and shallow bedrock wells

within and in the vicinity of the Post-Closure Permit Area. Regional aquifer wells are

monitored within and in the vicinity of the installation. The wells are located downgradient

from the Post-Closure Permit Area, but not at the point of compliance due to the depth to the

regional aquifer groundwater and hydrogeologic complexity of the subsurface.

- IV.E – The permit condition requires the monitoring of springs in Sycamore Canyon, water

seeps and surface water in Volunteer Wash and surface water in the Former Stock Tank so as

to detect any release from the Post-Closure Permit Area into the environment.

- IV.F– The permit condition requires Camp Navajo to prepare on a semi-annual basis

technical memoranda concerning vadose zone monitoring, quarterly technical memoranda for

the regional aquifer monitoring and an annual report with post-closure care and monitoring

information and results. This condition is also authorized by A.A.C. R18-8-264.A (40 CFR

264.73(b)).

Permit Part V contains standard conditions regarding corrective action for Solid Waste

Management Units (SWMUs). In September, 2016, Camp Navajo completed all mandatory

investigations and remediation under CERCLA. The Permit requires that if any new releases

occur or if ADEQ becomes aware of new information concerning historic releases within all

contiguous property under the control of the owner or operator, Camp Navajo could be required

to perform additional investigations and remediation. Remediation may be conducted under

CERCLA to satisfy RCRA. Notification shall be submitted to ADEQ when corrective action for

a SWMU will be deferred to CERCLA in accordance with Permit Condition V.M and Omnibus.

The regulatory bases for corrective actions are found in RCRA Section 3004(u) and (v), as

amended by the Hazardous and Solid Waste Amendments of 1984, and A.A.C. R18-8-264.A (40

CFR 264.101 and 40 CFR 264 Subpart S).

Permit Attachments

Attachment A – Reserved

Attachment B – Facility Description

Attachment C – Reserved

Attachment D – Post-Closure Plan for the Post-Closure Permit Area



Camp Navajo


Attachment E – Reserved

Attachment F – Solid Waste Management Unit Corrective Action Procedures [Munitions kick-

out area surrounding the Post-Closure Permit Area]

Attachment G – Contingency Plan

Attachment H – Reserved

Attachment I – Groundwater Monitoring Plan

Attachment J – Recordkeeping and Reporting

Attachment K – Reserved

Attachment L – Arizona Administrative Code

Attachment M – Corrective Action Schedule of Compliance–Approved Work Plans and Reports

DIRECTOR-ESTABLISHED PERMIT CONDITIONS

As required by Omnibus, the Director has established site-specific permit conditions to protect

human health and the environment as identified above and as follows. Additional details for

some of the conditions are as follows:

1. Groundwater and Vadose Zone Monitoring: The Permittee must perform vadose zone and

groundwater monitoring at the facility.

a. The Permittee must continue quarterly groundwater sampling and semi-annual vadose

zone sampling in accordance with the Groundwater Monitoring Plan contained in Permit

Attachment I.

b. Within 90 days of completion of each groundwater sampling event the Permittee must

submit a written monitoring technical memorandum to ADEQ.

c. Annually, the Permittee must submit an Annual Post-Closure Care and Groundwater

Monitoring Report.

2. Corrective Action Program for SWMU MRWA 02-02 (Kick-Out Area): The Permittee must

perform corrective action within the kick-out area surrounding the Post-Closure Permit Area

when munitions are discovered during inspections and normal operations.

a. Corrective action will occur for Explosives or Munitions Emergencies when blow-in-

place (BIP) activities are conducted to demilitarize munitions within SWMU MRWA 02-

02.

b. The Permittee shall conduct confirmation sampling after the BIP activity has been

completed to ensure there is no contamination above background for metals or that non-

residential soil standards are not exceeded for explosives. Waste management activities

do not apply to discoveries within the Post-Closure Permit Area since MEC and soil

contamination are already present.

c. An after action report for each event is required to be included in the Annual Post-

Closure Care and Groundwater Monitoring Report.



Camp Navajo


3. Additional Sampling Requirements. The Permittee must perform sampling of

soil/sedimentation that has migrated outside of the Post-Closure Permit Area, sampling of

water seeps and springs observed during inspections in Volunteer Wash and Canyon and

sampling of a spring(s) in Sycamore Canyon.

APPLICANT REQUESTED VARIANCES

None have been requested by the applicant.

PUBLIC PARTICIPATION PROCESS—PROCEDURES FOR REACHING A

FINAL DECISION ON THE DRAFT PERMIT

The administrative record for the draft permit contains all data submitted by the applicant and is

available for public inspection Monday-Friday (excluding state holidays) from 8:30 a.m. through

4:30 p.m. at the ADEQ address given below. It can also be viewed by going to Special

Collections and Archives at the Cline Library at Northern Arizona University, 1001 S. Knoles

Dr., Flagstaff, AZ, Monday – Thursday from 9am – 6pm; and Friday from 9am – 5pm. Although

Special Collections is closed on Saturday and Sunday, special arrangements can be made by

calling in advance. In addition, a copy of portions of the administrative record (draft permit,

application and other relevant documents) is available in Special Collections at the Cline Library

during the hours noted above, or at the ADEQ Phoenix office.

Arizona Department of Environmental Quality

Records Management Center

1110 West Washington Street, 1st Floor

Phoenix, Arizona 85007

For appointments call: (602) 771-4380

The draft permit and supporting documents can be viewed under the public comment start date

on the Public Notice Calendar at azdeq.gov/notices.

As required by A.A.C. R18-8-271(L) and 40 CFR §124.13, all persons, including applicants,

who believe any condition of the draft permit or the tentative decision to prepare and issue this

draft proposed permit is inappropriate, must raise all reasonable ascertainable issues and submit

all reasonably available arguments and supporting materials by the close of the public comment

period. All comments submitted during the public comment period shall discuss the

appropriateness of the draft permit.

The 45-day public comment period will open on November 6, 2016. During the public

comment period, any interested person may submit written comments on the draft permit. These

comments and supporting materials must be submitted to ADEQ by the last day of the public

comment period (i.e., December 22, 2016) to:

Arizona Department of Environmental Quality

Terry Baer, Manager

Hazardous Waste Unit

1110 West Washington Street



Camp Navajo


Phoenix, Arizona 85007

email: [email protected]

All written comments delivered or postmarked by the last day of the public comment period will

be considered in ADEQ’s final determination regarding the draft permit. After all comments

have been considered, a final permit decision will be made by the Director. The applicant, each

person who has submitted written or oral comments, and each person who has so requested will

receive a notice of this final permit decision. This notice shall include reference to procedures for

appealing a decision on a draft permit. The final permit decision shall become effective on the

date specified in the final permit notice.

At the time that the final decision is made, the Director shall also issue a response to any

significant comments. The response to comments shall consider all items as specified in A.A.C.

R18-8-271.O and 40 CFR §124.17. The response to comments shall be made available to the

public for review. Any person who desires to be placed on the mailing list for all future

permitting activities for this facility or for facilities in a specific geographic area may request so

in writing to the above address, pursuant to A.A.C. R18-8-271.I(c)(1)(ix) and 40 CFR

§124.10(c)(1)(ix)(a).

In addition to submitting public comment, any person may request the Director to schedule a

public hearing. Written requests for a public hearing must be submitted to ADEQ by not

later than close of the comment period, December 22, 2016 and must state the nature of the issues proposed to be raised in the hearing. The Director will hold such a hearing if:

1) He finds, on the basis of requests, a significant degree of public interest in the draft permit, or

2) He finds that the hearing might clarify one or more issues involved in the permit decision, or

3) A formal written notice of opposition to the draft permit is received within the comment

period.

PERSON TO CONTACT FOR ADDITIONAL INFORMATION

For additional information, please contact Terry Baer Manager of the Hazardous Waste Unit of

ADEQ at (602) 771-4503 or toll free at (800) 234-5677, extension 771- 4503 or at the ADEQ

address above.

Please bring this notice to the attention of anybody who might be interested in this matter.



Camp Navajo


Figure 1. Site Location (map source: DD3, ADEQ AZMapper, Hazardous Waste – TSD layer 11-07-16)



Camp Navajo


Figure 2. Installation Map (map source: CH2M, MAPFILES, Permit Application Appendix A, SSTEWAR8, 9-15-16)



Camp Navajo


Figure 3. Post-Closure Permit Area Map (map source: CH2M, MAPFILES, Permit Application Appendix I, SSTEWAR8, 9-15-16)

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